People have different ways of greeting each other. They might shake hands  , kiss or hug  . But do you ever wonder how dogs say hello? If you are a dog lover, you already know the answer to this question. When you arrive home, your dog jumps up into your lap  . It wags   its tail, and sometimes gives you wet kisses. Like humans, dogs have five senses  : smell, touch, sight, hearing and taste. Humans use sight as the main sense for recognizing   one another. But dogs have poor eyesight. They use smell to recognize others. A dog's sense of smell is much better than a human's. It is through its sense of smell that tells the differences between different people. Dogs use smell to recognize other dogs, too. They tell the differences by the smell of pee   and pooh  . When two dogs meet, they smell each other's noses. Then they go side to side, and smell each other's butts  . By smelling its friend's behind, a dog knows who it is with. That is also why dogs smell everything they can on the road. By smelling grass, trees and signposts  , dogs know which other neighborhood dogs have been around. People have different ways of greeting each other except   _  . A) hug B) shaking hands C) jump D) kiss
C

People usually talk about two groups of colours: warm colours and cool colours. Scientists think that there are also two groups of people: people who prefer warm colours and people who prefer cool colours. The warm colours are red, orange and yellow. Where there are warm colours and a lot of light, people usually want to be active . People think that red example is exciting sociable people, those who like to be with others like red. The cool colours are green, blue and purple. These colours, unlike warm colours, are relaxing. Where there are cool colours, people are usually quiet. People who like to spend time alone often prefer blue. Red may be exciting but one scientist says that time seems to pass more slow in a room with warm colours than in a room with cool colours. He suggested that a warm colour such as red or orange is a good colour for a living room or a restaurant. People who are relaxing or eating don't want time to pass quickly. Cool colours are better for offices of factories as the people who work there want time to pass quickly. Scientists don't know why people think some colours are warm and other colours are cool. However, almost everyone agrees that warm colours remind people of warm days and cool colours remind them of cool days. Because in the north the sun is low during winter, the sunlight appears quite blue. Because the sun is higher during summer, the hot summer sunlight appears yellow.                                Jacksunshine998@sina com Which is the best title?   _  . A) Two groups of colours B) Cool colours C) Warm colours D) Colours and people
D

If you're into sports , you 've seen it happen -----tennis players jump over the net to shake hands after a hard match ;football players exchange jerseys   after 90 minutes of knocking each other around ;even boxer touch gloves at the beginning of each round .Players in every event ,from spelling _ to golf  ,act in this way .It's all parts of sportsmanship , A great tradition  in sports and competition .It means playing and being calm all through the match . Everyone feels great when they win .In the last few years ,your may see some players celebrate a goal with a long dance .However , it's always hard for people to say in public that they made a bad play .Good sportsmanship is what they really need .It's the golden rule of sports . Good sportsmanship means that you play by the rules ,talk politely to every during games and stay cool even when you lose the game .At the school sports meet, for example , it's more important for you to know how to work as part of a team and cheer your team on .hey may help you enjoy more success at your future work .In competition---as us in life--you may not always win ,but believe me ,sportsmanship will help you get through , and there is always the next match . What match do you know will last 90 minutes ? A) Tennis B) Football C) Golf D) Spelling

B